This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This beautiful, historic church looks like something out of a simpler past.

The oldest church in Iceland is one of the few to feature ornate decoration.

Iceland: home to volcanoes, waterfalls and, apparently, Santa?

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

Historic Hull Street was actually the first street with a proper name in the Boston area.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

The site of Paul Revere's historic two lantern warning.

This rare symbol of Eastern philosophy in the West has been created over years of painstaking construction by the local community.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

Friction between grains of sand cause a curious "singing" sound.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

This unusual building straddles two countries.

A century after his death, this covered bridge still calls to mind the plein air painter who loved it.

One of the largest Buddhist stupas in North America is built of concrete designed to last 1,000 years.

Orcas on display and in the water.

An outsider art duo's yard has been turned into a whimsical public gallery.

The highest point in Washington state is a volcano covered in glaciers.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.